You asked
What accessories do I need for the leica q typ 116?
The Leica Q (Typ 116) has a built-in 28mm f/1.7 lens, so you don't need a lens to get started. I don't cover accessories for it on this site, so I can't give you a checked list of bags, batteries, or straps.
If you plan to shoot video, the Video guide explains why ND filters matter. In daylight with a wide aperture, they help you keep the shutter near twice your frame rate. For the camera's own details, see the Leica Q (Typ 116) page.
Written by Claude from this site's pages.